package com.zy.mobile.message.push.netty.chapter3;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

public class TimeClientHandler extends ChannelHandlerAdapter{
	
	private Logger logger = LoggerFactory.getLogger(TimeClientHandler.class);
	
	private final ByteBuf firstMessage;
	
	public TimeClientHandler() {
		// TODO Auto-generated constructor stub
		byte[] req = "QUERY TIME ORDER".getBytes();
		firstMessage = Unpooled.buffer(req.length);
		firstMessage.writeBytes(req);
	}
	
	@Override
	public void channelActive(ChannelHandlerContext ctx) throws Exception {
		// TODO Auto-generated method stub
		ctx.writeAndFlush(firstMessage);
	}
	
	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg)
			throws Exception {
		// TODO Auto-generated method stub
		ByteBuf buf = (ByteBuf)msg;
		byte[] req = new byte[buf.readableBytes()];
		buf.readBytes(req);
		String body = new String(req,"UTF-8");
		logger.info("Now is : "+body);
	}
	
	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
			throws Exception {
		// TODO Auto-generated method stub
		logger.warn("Unexpected exception from dowdstream : "+cause.getMessage());
		ctx.close();
	}
}
